is the viewmodel scope should not be activity ?

[afaucogney]

@villela Thank for this, because it help me a lot going further with integration of TP with VM
However do you think application scope the good level ?

[villela]

I'm glad commiting this helped someone, good to hear.

Well, I'm not sure about anything here. From what I've seen using a root scope my ViewModels worked as expected.

Probably the root scope is not the best option but using the activity scope instead for sure isn't a correct approach since multiple activities should be able to attach to the same ViewModel.